Penghilangan pengotor pada katalisator bekas di primary reformer
ABSTRACT Commercial NiO catalyst deactivated in primary reformer was mainly due to coke deposition over its surface. Coke removal has been carried out in a fixed bed reactor with air blowing through the high temperature bed. The reaction was investigated at various time and temperature. A mathematic...
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| Format: | Article NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
1998
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/18877/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=1693 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | ABSTRACT
Commercial NiO catalyst deactivated in primary reformer was mainly due to coke deposition over its surface. Coke removal has been carried out in a fixed bed reactor with air blowing through the high temperature bed. The reaction was investigated at various time and temperature.
A mathematical model was presented to account the kinetic behavior of a porous pellet in which noncatalytic gas-solid reaction was taking place. The rate controlling step was evaluated by observation and interpretation of experimental data. It was found that the rate controlling step was the chemical reaction controls. The reaction rate constant, k,� was found for each temperature. The reaction rate constant and temperature correlation found fitted very well the Parker and Hatters correlation. It can be expressed as k s= 1.097 10......
with an average percentage deviation of 2.38%. |
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